CLIVET TALK - Freecooling Modes; Internal Freecooling Description

Data creazione 10/09/03 DS03I009GB--00 Pagina 46 di 59
FREECOOLING
There are two different freecooling modes:
INTERNAL:
the freecooling coil is located near the condenser coil. During the freecooling phase, the
condensing fans (managed by the compressor modules) are controlled according to the average evaporator
outlet temperature, as shown below (that is, independently from the configuration of the system).
Freecooling coil
Condenser coil Condenser coil
Evaporator
0-10V freecooling valve output
H20 inlet probe
Evaporator
NTC
NTC
NTC
Condenser
fans
NTC
Valve
(
H2O inlet
)
OUT tem
p
erature
(
H2O outlet
)
(
H2O outlet
)
ON-OFF freecooling valve output
Outside air probe
CENTRAL MODULE
UNIT-1